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18-11-2003
| #1 (permalink) |
| CD Freaks Member Join Date: Sep 2002
Posts: 100
| Firmware commands... ?!?! I'm interested if anyone could help me and tell if there is a list of firmware commands (if they do exist)Taking in on logical thinking each modern CD/CDRW drive should have a standard firmware command set not dependent of the drive vendor. If I'm mistaking somewhere please correct me Thanks in advantage |
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18-11-2003
| #2 (permalink) |
| Retired Moderator  Join Date: Jun 2002
Posts: 4,353
| What in the world is a firmware command?
__________________ .:: Dave | http://dhc014.rpc1.org ::. |
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19-11-2003
| #5 (permalink) | |
| CD Freaks Junior Member  Join Date: Oct 2003
Posts: 77
| Quote:
 . Something like this maybe:mov dptr,#X886f setb c lcall XBBF3 What does it mean? No idea, don't know assembler.  | |
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20-11-2003
| #7 (permalink) |
| Retired Moderator  Join Date: Jun 2002 Location: CT USA
Posts: 1,186
| You should ask spath. Chipsets and firmware, I would think, are intimately related.
__________________ BRPR Pumping Iron & Sweating Steel (for 30 years) - Joe Grushecky And The Iron City Houserockers - "Labels come and go. The music remains. Music companies are generally the enemy of the musician." Junior's Bar where the band is playing, just for me. They play real loud, they move the crowd, It's a poor boy's symphony. Junior's Bar, until they kill the neon lights, I hope I don't go home alone tonight. Iron City Sampler Free Peltier |
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30-11-2003
| #10 (permalink) | |
| CD Freaks Junior Member Join Date: Oct 2003
Posts: 77
| Quote:
http://www.8052.com/users/disasm/ | |
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01-12-2003
| #11 (permalink) |
| New on Forum Join Date: Dec 2003 Location: Houston
Posts: 2
| Firmware commands Well obviously there are commands in the firmware if the firmware is designed to allow you to update the drives functions. Every device in a computer talks to the OS through the computers BIOS. The BIOS has to be able to send and receive commands/information from the device it is accessing. Wheather they are called commands or not is a different story though. |
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04-12-2003
| #13 (permalink) |
| Moderator  Join Date: Jan 2002
Posts: 967
| > Every device in a computer talks to the OS through the computers BIOS. Errr not at all, any privileged piece of code running of the OS can directly access devices without the BIOS. As for firmwares commands, there are no such thing : the firmware just runs on a microcontroller and receives MMC commands which it converts to various memory/register accesses to several chipsets. Thus the code you will get from disassembling the firmware is useless without the specs of the chipsets. |
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04-12-2003
| #14 (permalink) | |
| Letiled Modelatol  Join Date: Feb 2002 Location: La Suède
Posts: 6,937
| Quote:
__________________
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